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Charles Bronson as Joe Valachi |
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Lino Ventura as Vito Genovese |
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Jill Ireland as Maria Reina Valachi |
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Walter Chiari as Dominick Petrilli, aka "Gap" |
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Joseph Wiseman as Salvatore Maranzano |
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Gerald S. O'Loughlin as Ryan, federal agent |
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Amedeo Nazzari as Gaetano Reina |
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Fausto Tozzi as Albert Anastasia |
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Pupella Maggio as Letizia Reina |
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Angelo Infanti as Lucky Luciano |
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Guido Leontini as Tony Bender |
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María Baxa as Donna Petrillo |
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Mario Pilar as Salierno |
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Franco Borelli as Buster |
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Alessandro Sperli as Giuseppe 'Joe the Boss' Masseria |
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Natasha Chevelev as Jane |
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Anthony Dawson as Federal Investigator |
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Fred Valleca as Buck |
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John Alarimo as Steven Ferrigno (uncredited) |
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Calogero Azzaretto as Man of the clan (uncredited) |
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Joe Don Baker as Irish member of Valachi gang (uncredited) |
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Steve Belloise as Winnie (uncredited) |
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Angelo Boscariol as Gangster (uncredited) |
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Nestore Cavaricci as Prisoner with Valachi (uncredited) |
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Giacomo De Michelis as Augie (uncredited) |
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Bruno Di Luia as Luciano's Henchman (uncredited) |
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Arny Freeman as Warden (uncredited) |
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Alfonso Giganti as Wedding party guest (uncredited) |
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Ron Gilbert as Prison Guard (uncredited) |
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Frank Gio as Frank (uncredited) |
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Syl Lamont as Commander of Fort Monmouth (uncredited) |
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Imelde Marani as Donna Petrillo's friend (uncredited) |
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Isabelle Marchall as Mary-Lou (uncredited) |
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Jason McCallum as Donald Valachi (uncredited) |
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Sabine Sun as Jane (uncredited) |
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Robert Trout as Self (uncredited) |
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Franco Ressel as (uncredited) |
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Richard Dunne as Judge (uncredited) |
| Writing | Massimo De Rita | Dialogue |
| Writing | Dino Maiuri | Dialogue |
| Sound | Rocco Roy Mangano | Sound Engineer |
| Directing | Terence Young | Director |
| Writing | Stephen Geller | Screenplay |
| Writing | Peter Maas | Novel |
| Production | Nino Crisman | Executive Producer |
| Production | Dino De Laurentiis | Producer |
| Production | Roger Duchet | Producer |
| Production | Jerry Ferraro | Co-Producer |
| Sound | Riz Ortolani | Original Music Composer |
| Sound | Armando Trovajoli | Original Music Composer |
| Camera | Aldo Tonti | Director of Photography |
| Editing | Johnny Dwyre | Editor |
| Editing | Monica Finzi | Editor |
| Art | Mario Garbuglia | Production Design |
| Art | Boris Juraga | Set Decoration |
| Art | Ferdinando Ruffo | Set Decoration |
| Costume & Make-Up | Giorgio Desideri | Costume Design |
| Costume & Make-Up | Ann Roth | Costume Design |
| Costume & Make-Up | Giannetto De Rossi | Makeup Artist |
